Eotyrannus (meaning "dawn tyrant") is a genus of tyrannosauroid theropod dinosaur hailing from the Early Cretaceous Wessex Formation beds, included in Wealden Group, located in the southwest coast of the Isle of Wight, United Kingdom. The remains (MIWG1997.550), consisting of assorted skull, axial skeleton and appendicular skeleton elements, from a juvenile or subadult, found in a plant debris clay bed, were described by Hutt et al. in early 2001.[1] The etymology of the generic name refers to the animal's classification as an early tyrannosaur or "tyrant lizard", while the specific name honors the discoverer of the fossil.
^Hutt, S.; Naish, D.; Martill, D.M.; Barker, M.J.; Newbery, P. (2001). "A preliminary account of a new tyrannosauroid theropod from the Wessex Formation (Cretaceous) of southern England" (PDF). Cretaceous Research. 22: 227–242. doi:10.1006/cres.2001.0252.
analysis found Eotyrannus to be a megaraptoran closely related to taxa like Megaraptor. However, a 2017 study stated that Eotyrannus was a stokesosaurid...
possibly indicating an early size increase in the lineage. An immature Eotyrannus was over 4 meters (13 feet) in length, and a subadult Appalachiosaurus...
Neovenator, or Siats were megaraptorans, but they did place the tyrannosauroid Eotyrannus within Megaraptora. Despite the hypothesized close relation between megaraptorans...
relationship to other tyrannosauroids showed that it was more primitive than Eotyrannus in the evolutionary tree, but more advanced than tyrannosauroids such...
a sister taxon to Stokesosaurus clevelandi in a clade (also including Eotyrannus) of basal tyrannosauroids more advanced than Dilong. However, in 2013...
004. Naish, D.; Cau, A. (July 2022). "The osteology and affinities of Eotyrannus lengi, a tyrannosauroid theropod from the Wealden Supergroup of southern...
sides of the nasal, which is seen in less-derived genera like Dilong and Eotyrannus. The rest of the skull is also characteristically compact. The prefrontal...
as Ceratosuchops, Riparovenator, Baryonyx, Polacanthus, Iguanodon and Eotyrannus. The holotype bones were mixed with those of the herbivorous iguanodontian...
cladogram from a 2022 study by Darren Naish and Andrea Cau on the genus Eotyrannus: Proceratosaurus possessed a nasal crest, which may have served as a display...
this is based on partial remains of one individual. Like its relative Eotyrannus, Dryptosaurus seems to have had relatively long arms when compared with...
the ilium, was found on the undescribed left ilium of the holotype of Eotyrannus. This leaves only a single autapomorphy of Stokesosaurus which is not...
occurred include the theropods Riparovenator, Ceratosuchops, Neovenator, Eotyrannus, Aristosuchus, Thecocoelurus, Calamospondylus, and Ornithodesmus; the...
describing and reevaluating dinosaurs and other Mesozoic reptiles, including Eotyrannus, Xenoposeidon, and azhdarchid pterosaurs. Much of his research has focused...
tyrannosaurs, like Alioramus and Alectrosaurus, were excluded, as was Eotyrannus from England. Earlier tyrannosaurs, such as Dilong and Guanlong, had not...
Iguanodon, Polacanthus and Hypsilophodon, in addition to saurischians like Eotyrannus. Additionally, a large allosauroid theropod, Neovenator salerii (discovered...
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